main()                                                      
   {                                                           
       int m = 12345;                                          
       long n = 987654;                                        
                                                               
       printf("%d\n",m);                                       
       printf("%10d\n",m);                                     
       printf("%010d\n",m);                                    
       printf("%-10d\n",m);                                    
       printf("%10ld\n",n);                                    
       printf("%10ld\n",-n);                                   
   } 

Output                                                      
                                                               
   12345                                                       
        12345                                                  
   0000012345                                                  
   12345                                                       
       987654                                                  
      -987654